We've done a little digging and have found the proper replacement thermostat you're looking for. I've included it below for your convenience.

Thanks again for reaching out to Tundra Restaurant Supply with your question. Don't hesitate to give a member of our team a call at 1-888-388-6372 if you need help finding additional parts for your fryer.https://www.etundra.com/restaurant-parts/electrical-parts/thermostats/commercial-36-inch-capillary-kx-thermostat-with-200-degrees-400-degrees-range/